Coaxial assembly and assembly method using the same

ABSTRACT

An coaxial assembly includes a first member, a second member, and at least two position members. The first member has an assembly hole with a sidewall. The second member having an lateral wall. The at least two position members are evenly arranged along a circumference of the lateral wall of the second member. The second member and assembly hole are configured such that when the second member is within the assembly hole, the at least two position members tightly abut the sidewall of the assembly hole, thereby causing the second assembly member to be coaxial with the first assembly member. An assembly method is also provided.

FIELD

The subject matter herein generally relates to an coaxial assembly andan assembly method using the same.

BACKGROUND

Mechanical assembly is important in machinery manufacturing. It iscommon that a plurality of components are required to be coaxial. Aspecial fixture can be used to ensure that the components are assembledcoaxially.

BRIEF DESCRIPTION OF THE DRAWINGS

Implementations of the present technology will now be described, by wayof example only, with reference to the attached figures.

FIG. 1 is an isometric view of one embodiment of an coaxial assembly.

FIG. 2 is an exploded view of the coaxial assembly shown in FIG. 1.

FIG. 3 is an exploded view of the coaxial assembly device shown in FIG.1 from another angle.

FIG. 4 is a cross-sectional view of the coaxial assembly taken along aline IV-IV of FIG. 1.

FIG. 5 is a flow chart of an assembly method of one embodiment.

DETAILED DESCRIPTION

It will be appreciated that for simplicity and clarity of illustration,where appropriate, reference numerals have been repeated among thedifferent figures to indicate corresponding or analogous elements. Inaddition, numerous specific details are set forth in order to provide athorough understanding of the embodiments described herein. However, itwill be understood by those of ordinary skill in the art that theembodiments described herein can be practiced without these specificdetails. In other instances, methods, procedures and components have notbeen described in detail so as not to obscure the related relevantfeature being described. Also, the description is not to be consideredas limiting the scope of the embodiments described herein. The drawingsare not necessarily to scale and the proportions of certain parts may beexaggerated to better illustrate details and features of the presentdisclosure.

Several definitions that apply throughout this disclosure will now bepresented.

The term “coupled” is defined as connected, whether directly orindirectly through intervening components, and is not necessarilylimited to physical connections. The connection can be such that theobjects are permanently connected or releasably connected. The term“substantially” is defined to be essentially conforming to theparticular dimension, shape or other word that substantially modifies,such that the component need not be exact. For example, substantiallycylindrical means that the object resembles a cylinder, but can have oneor more deviations from a true cylinder. The term “comprising,” whenutilized, means “including, but not necessarily limited to”; itspecifically indicates open-ended inclusion or membership in theso-described combination, group, series and the like.

The present disclosure is described in relation to an coaxial assemblyand an assembly method using the same.

FIG. 1 illustrates that an coaxial assembly 100 includes a first member10, a second member 30 received in the first member 10, and a pluralityof position members 50 mounted on the side of the second member 30. Thefirst member 10 can include a receiving hole 14 for receiving the secondmember 30, and the position members 50 can be positioned in thereceiving hole 14 and located between the first member 10 and the secondmember 30. The first member 10 can be coaxial with the second member 30.

FIG. 2 illustrates that the first member 10 can be substantially columnshaped. The second member 30 can include a main body 32 and an assemblyportion 34. The assembly portion 34 can extend from the centre of mainbody 32 and include an lateral wall 341. The main body 32 and theassembly portion 34 can be substantially column shaped. The assemblyportion 34 can have a central axis 342 (shown in FIG. 4), and a diameterof the assembly portion 34 can be smaller than a diameter of the mainbody 32. The assembly hole 14 can have a sidewall 141.

In at least one embodiment, the number of the position members 50 can befour, and the position members 50 can be evenly distanced from eachother and along a circumference of the lateral wall of the second member30. Each position member 50 can be substantially wedge-shaped andradially extending from the lateral wall 341 of the assembly portion 34.The position member 50 can include a guiding surface 52 and an abuttingend 54 at one end of the guiding surface 52.

The guiding surface 52 can be inclined to the central axis 342 of theassembly portion 34, and a distance between one end of the guidingsurface 52 away from the main body 32 and the assembly portion 34 issmaller than a distance between the other end of the guiding surface 52adjacent to the main body 32 and the assembly portion 34. The abuttingend 54 can be arranged at one end of the guiding surface 52 near themain body 32.

FIG. 3 illustrates that the first member 10 can further define anassembly hole 14 in communication with the receiving hole 12. Theassembly hole 14 can be substantially coaxial with the receiving hole12. The assembly hole 14 and the receiving hole 12 can run throughopposing ends of the first member 10. A diameter of the assembly hole 14can be smaller than a diameter of the receiving hole 12, thereby astepped surface 16 can be formed at junction of the receiving hole 12and the assembly hole 14. The stepped surface 16 can be configured toabut and support the second member 30.

FIG. 4 illustrates that the second member 30 can be received in thereceiving hole 12 and the assembly hole 14. The assembly portion 34 ofthe second member 30 can extend from the main body 32 toward theassembly hole 14, and coaxially received in the assembly hole 14. Whenthe assembly portion 34 is inserted into the assembly hole 14, theguiding surface 52 can come into contact with one end portion of theassembly hole 14, and the movement of the assembly portion 34 can beguided. When the assembly portion 34 is received in the assembly hole14, the abutting ends 54 can make an interference with the sidewall 141of the assembly hole 14, thereby the assembly portion 34 can bepositioned and fixed in the assembly hole 14, and the assembly portion34 can be coaxial with the assembly hole 14. In other embodiments, theabutting ends 54 can tightly abut the sidewall 141 of the assembly hole14, and do not make an interference with the sidewall 141.

In at least one embodiment, the position member 50 can be coupled to theassembly portion 34 by casting, welding, adhesive joints, or othermechanical joint. The position members 50 can also integrally formedwith the assembly portion 34. In other embodiments, the number of theposition members 50 can be two or more than two, and the positionmembers 50 can be evenly arranged at lateral wall 341 of the assemblyportion 34.

Referring to FIG. 5, a flowchart is presented in accordance with anexample embodiment which is being thus illustrated. The example method500 is provided by way of example, as there are a variety of ways tocarry out the method. The method 500 described below can be carried outusing the configurations illustrated in FIGS. 1 through 4, for example,and various elements of these figures are referenced in explainingexample method 500. Each block shown in FIG. 5 represents one or moreprocesses, methods or subroutines, carried out in the example method500. Furthermore, the illustrated order of blocks is by example only andthe order of the blocks can change according to the present disclosure.Additional blocks may be added or fewer blocks may be utilized, withoutdeparting from this disclosure. The example method 500 can begin atblock 501.

At block 501, the first member 10 with an assembly hole 14 can beprovided.

At block 502, the second member 30 with an assembly portion 34 can beprovided.

At block 503, at least two position member 50 can be provided. Eachposition member 50 can include the guiding surface 52 and the abuttingend 54. The guiding surface 52 can be inclined with the central axis 342of assembly portion 34, and the abutting end 24 can be formed at one endof the guiding surface 52.

At block 504, the at least two position members 50 can be evenlyarranged at the lateral wall 341 along circumference of the assemblyportion 34.

At block 505, the assembly portion 34 can be assembled into the assemblyhole 14, and the abutting ends of the position members 50 can tightlyabut the sidewall 141 of the assembly hole 14, thus the second member 30can be coaxially mounted to the first member 10.

As the position members 50 can tightly abut the sidewall 141 of theassembly hole 14 or make an interference with the sidewall 141 of theassembly hole 14, the second member 30 can be coaxially mounted to thefirst member 10. The assembly is simple, and the assembly process isconvenient. The first member 10 can be coaxial with the second member30. The plurality of the position members 50 can have a same size and asame structure, thus the position members 50 can have a highmanufacturing accuracy. Moreover, the position members 50 can be adaptedto different kinds of the first member 10 and the second member 30, thusthe production cost is low.

The embodiments shown and described above are only examples. Manydetails are often found in the art such as the other features of ancoaxial assembly and an assembly method using the same. Therefore, manysuch details are neither shown nor described. Even though numerouscharacteristics and advantages of the present technology have been setforth in the foregoing description, together with details of thestructure and function of the present disclosure, the disclosure isillustrative only, and changes may be made in the detail, especially inmatters of shape, size and arrangement of the parts within theprinciples of the present disclosure up to, and including, the fullextent established by the broad general meaning of the terms used in theclaims. It will therefore be appreciated that the embodiments describedabove may be modified within the scope of the claims.

What is claimed is:
 1. An coaxial assembly comprising: a first memberdefining an assembly hole, the assembly hole having a sidewall; a secondmember having an lateral wall; and at least two position members evenlyarranged along a circumference of the lateral wall of the second member;wherein the second member and assembly hole are configured such thatwhen the second member is within the assembly hole, the at least twoposition members tightly abut the sidewall of the assembly hole, therebycausing the second assembly member to be coaxial with the first assemblymember.
 2. The coaxial assembly as claimed in claim 1, wherein thesecond member comprises a main body and an assembly portion extendingfrom the main body; and wherein the assembly portion is received in theassembly hole and has a central axis, and the position members arearranged at a sidewall of the assembly portion and positioned betweenthe first member and the assembly portion.
 3. The coaxial assembly asclaimed in claim 2, wherein the position member comprises a guidingsurface away from the assembly portion, the guiding surface is inclinedto the central axis of the assembly portion and configured to guide amovement of the assembly portion when being assembled into the assemblyhole.
 4. The coaxial assembly as claimed in claim 3, wherein theposition member further comprises an abutting end formed at one end ofthe guiding surface near the main body; when the assembly portion isreceived in the assembly hole, the abutting end tightly abuts thesidewall of the assembly hole.
 5. The coaxial assembly as claimed inclaim 2, wherein the first member further defines a receiving hole, andthe receiving hole is coaxial with the assembly hole and incommunication with the assembly hole; and wherein the main body isreceived in the receiving hole, thereby the assembly portion isassembled into the assembly hole.
 6. The coaxial assembly as claimed inclaim 1, wherein the position member is coupled to the second member bycasting, welding or adhesive joints.
 7. An assembly method comprising:providing a first member having an assembly hole, the assembly holehaving a sidewall; providing a second member having an lateral wall;providing at least two position members, and arranging the at least twoposition members evenly along a circumference of the lateral wall of thesecond member; and assembling the assembly second member to the assemblyhole; wherein the second member and assembly hole are configured suchthat when the second member is within the assembly hole, the at leasttwo position members tightly abut the sidewall of the assembly hole,thereby causing the second assembly member to be coaxial with the firstassembly member.
 8. The assembly method as claimed in claim 7, whereinthe second member comprises a main body and an assembly portionextending from the main body; and wherein the assembly portion isreceived in the assembly hole and has a central axis, and the positionmembers are arranged at a sidewall of the assembly portion andpositioned between the first member and the assembly portion.
 9. Theassembly method as claimed in claim 8, wherein the position membercomprises a guiding surface away from the assembly portion, the guidingsurface is inclined to the central axis of the assembly portion andconfigured to guide a movement of the assembly portion when beingassembled into the assembly hole.
 10. The assembly method as claimed inclaim 9, wherein the position member further comprises an abutting endformed at one end of the guiding surface near the main body; when theassembly portion is received in the assembly hole, the abutting endtightly abuts the sidewall of the assembly hole.
 11. The assembly methodas claimed in claim 9, wherein the first member further defines areceiving hole, and the receiving hole is coaxial with the assembly holeand in communication with the assembly hole; and wherein the main bodyis received in the receiving hole, thereby the assembly portion isassembled into the assembly hole.
 12. The assembly method as claimed inclaim 8, wherein the position member is coupled to the second member bycasting, welding or adhesive joints.